Grain-separator



N.PETERS. PHOTO-LITHOGRAPHER, WASHINGTON, D. C,

J. H. GRBTER. Gram Separator.

UNITED STATES PATENT ffOEEicE.

JOSEPH H. ORETER, OF NORWALK, OHIO.

GRAIN-SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 239,226, dated March 22, 1'881. Application filed August 7, 1880. (No model.)

Toall whom tt may concern:

Beit known that I, JOSEPH H. GRE'rEn, of Norwalk, in the county of Huron and State of Ohio, have invented a new and useful Improvement in Grain-Separators; and I do hereby declare that the following is a full, clear, and exact description of the same.

My invention relates to seed and grain separators; and it consists, mainly,in the combination, with the chute on which the grain falls after being subjected to the action of the screens, ot' a block of peculiar shape and a deiiector, by which the grain is detlected across the path of the draft and the draft prevented from moving up the passage down which the grain falls.

In the accompanying drawings, Figure l represents a longitudinal vertical section of my improved apparatus. Fig. 2 represents a side-elevation, and Fig. 3 an end elevation, the last two figures being drawn upon a reduced scale.

In Fig. l the fan is represented at A, and it is operated by a crank or in any other wellk-nown 1t is mounted upon the rear post, B, which, with the front posts, B', supports thecap-rails C O. These cap-rails project overjlthe drum and support the hopper D. This hopper.. is thus set back far enough to feed uponthe back end of the screen, thereby giving the whole length ofthe screen full opportunity to work, and at the same time permitting the screen to extend the whole length of the machine.

. 4 The screen is represented at L resting at the forward and inclined end upon a cross-bar, M. Air is admitted into the space above the screen by an upper air-flue, E, which extends the whole width of the machine, and which, as represented in Fig. l, is greatly enlarged in proportion to 'the throat, in which is located the valve F, this throat being smaller than the throat or passage f, through which the air is forced into the flue E. This construction gives the machine power, by the condensation and pressure of the atmosphere, to work with uniformity, and to weigh any kind of grain or seed, whether lighter or heavier. The valve F is so constructed and arranged, as represented in Fig. 1, that it directs the air above the screen. It is essential that the current should be thus directed above the screen and not allowed to come in contact therewith. The upper current of air thus cleans the grain, or partially cleans it, before it falls upon the screen, thereby permitting the grain more readily to go through the screen, and enabling the machine to work faster than fanning-niills ordinarily do.

A lower flue, E', is also represented in FiO. 1, receiving its air from the larger passage below at the valve F', and discharging it at the narrower passage G over the board gl. The shake-bar m rests upon an extension. ot' the siding, directly through the lower air-line.

A drawer is represented at H as located underneath the screen, in rear of the lower airlue. Above this drawer is a sliding section, i, of a chute-chamber, sliding up under a fixed section, t", whenever it is desirable to uncover the drawer, in order to admit to it refuse from seed-wheat, such as cockle, chess, or small or shriveled wheat that willrnot sell or do for seed. When the lower slide, t', is slipped down in place above the drawer H it forms, with the upper screen, a long shaft fitted to carry the grain or seed that is to be saveddown to the lower liue, and to discharge it therein. The drawer may be removed at the will of the operator. separated from the fan-chamber by a sheetiron lining, J, which prevents any seed from dropping through.

A circular sheet-iron detlector, N, is tacked to the shake-bar, and extends down in rear of the lower chute, E. There is also an inclined chute, O, arranged directly in rear of this, for the purpose of conveying the refuse seeds or grain into the drawer H.

I have devised a passage-way of special construction to guide the grain which falls through the screen L into the lower flue, E. This passage is formed by the block I?. .(Represented in section in Fig. l.) lts contour on the upper side is approximately an ogee curve. This block, thus curved or beveled, is in the relation as shown to the lower edge of the rear wall of the iiue, so that the grain, as it falls, strikes on the inclined upper surface of the block and is deflected directly across the current of air passing up the due E. It also serves to prevent the air from going up the passage down The space above it isf' which the grain falls. The lower side of the A cog-wheel, W, journaled in the rear post,

block P is rounded to allow free passage of the air into the flue E.

The groove in which the single screen slides is cut into the siding, and the use of a shoe is dispensed with. The groove is cut single at the forward end and double at the rear end, so that with the single screen the width of the opening above the screen may be varied at pleasure. The screen L is represented in the drawings, Fig. 1, as located in the upper groove; but it may be partially drawn out and slipped into the lower groove, l, at the will of the operator. This construction makes the machine more simple and lessens its cost.

Underneath thefan and lower flue is a boX, Q, having a suitable opening, q, for the purpose of admitting the screens thereto when not in use. It extends slightly in front ot' the front post, B, so as to give room for longer screens.

rlhe driving mechanism of the various operating parts is more clearly shown in Figs. 2 and 3.

The proper longitudinal motion is imparted to the shake-bar by means of rods S S, attached thereto and carried back to the pinions or wheels a' w', which are fixed on the shaft V. The rods are connected on the outside ot' the pinions or wheels a' x/ by means ot wrist-pins IiXed eccentrically, and at sufficient distance from the center to give the proper amount of motion upon the revolution ot' the shaft.

B, is driven by a pinion, 1 on the fan-shaft, 35 and communicates motion to the pinion m. m may be a bandwheel or pinion gearing into a duplicate ot' the cog-wheel W, if it be deemed desirable to duplicate this wheel.

Obviously the shaft V may be cranked and 4o connected directly tothe rods S S, if preferred.

The stems of the valve F F project through walls, and are provided with cranks or handles, by which they may be conveniently operated. The valves F Fmanifestly permit the 4 5 blast to be regulated according to the discretion of the operator, and according as he shall tind it necessary. n

Other means for communicating motion to the screens may be employed, those described 5o constituting no part of my invention.

What I claim by my invention is y The combination of the chtite i, the block P, having the ogee form in crosssection, and arranged below the lower end of the chute t, 55 and the detiector N, having its lower end extending below the plane of the said chute t', substantially as described.

In testimony whereof lhave signed my name to this specification in the presence of two sub- 6o scribing witnesses.

JOSEPH H. ORETER.

Witnesses:

BENJM. D. PATRICK, WILLIAM W. CONANI. 

